It did not stop biology when the hippo and whale were found to be the closest related genera among all other living genera. The paleontologists denied that for a while. When the DNA evidence was insurmountable, a suitable substitute for the ancestor of the whale was found that allowed it to be placed closer to the hippo. They now admit that the whale is an artiodactyl yet they refuse to place it close to the hippo. Why? Picture the pakicetus buried underneath the camels, pigs, ruminants, and hippos.
